This study constitutes a descriptive analysis of the hygiene/sanitation conditions implemented in food service systems in eight Spanish school canteens. The results should help risk managers to better define control measures to be adopted in order to prevent foodborne infections.

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The growth of NMR foodomics is described in the context of a study of beef storage. Thirty samples of three meat cuts (chuck, sirloin, and tenderloin) were analyzed using 1H NMR spectroscopy to determine the influence of storage period and temperature. 1H showed signals belonging to metabolites namely: acetate, adenosine, adenine, ADP, alanine, betaine, creatine, creatinine, carnosine, fumarate, glycerol, glycine, glutamine, isoleucine, lactate, leucine, methionine, and valine. The score plots (PCA) separated the samples of different storage time, reflecting possible meat degradation. Samples of no storage time (time zero) were grouped in the PC1 and PC2 negatives axis. The score plots suggest that the temperature has a huge influence on the degradation extent and possible influences the growth of the microbial populations.

A presente pesquisa destina-se ao estudo do comportamento das principais populações microbianas responsáveis pela deterioração da carne bovina embalada à vácuo com diferentes faixas de pH, armazenadas a 4ºC. Os resultados indicaram que as BAL foram o grupo predominante a 4ºC. O crescimento microbiano foi influenciado pelo pH inicial da carne, quando maior que 5,8. Tais resultados podem ser úteis para reduzir perdas e garantir um produto de melhor qualidade.